Flushing apparatus



A; H. KLAHN.

-FLUSH|NG APPARATUS.

APPLICATION FILED DEC.26, |914. RENEWED FEB. 24, 1919.

1,383,273. PandJune 28,' 1921.

2 SHEETS-SHEET l.

F/5. H5. Z

A. H. KLAHN.

FLUSHING APPARATUS. APPLICATION FILED DEc.26,1914. RENEWED 153.211.1919..

1,383,273, Patented June 28, 1921.

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PATENT OFFICE. l

ARTHUR H. KLAHN, OF SAN FRANCISCO, CALIFORNIA.

FLUSHING APPARATUS.

Application `filed December 26, 1914, Serial No. 879,093. Renewed February 24, 1919. Serial No. 278,934.

To all fw hom t may concern Be it known that I, ARTHUR H. KLAHN, a citizen of the United States, residing at San Francisco, in the county of San Francisco, State of California, have invented a new and useful Flushing Apparatus, of which the following is a specification in such full and clear terms as, will enable those skilled in the art to construct and use the same.

This invention relates to an apparatus for flushing toilets and its object is to provide an air tight tank with the inlet and outlet near the bottom, permanently sealed at the upper end and no connections, fittings, or openings at or near the top which might allow the air which is trapped and compressed in the upper end of the tank to escape. Should the air in the tank escape the tank becomes airbound and the water cannot escape therefrom any faster than it runs in, in which event the oat valve will float indefinitely and the water will run out olf the tank only as fast as it runs in, the main body of water remaining in the tank.

This apparatus insures a fixed quantity of water for flushing the fixture and automatically discharging the entire contents of the tank at each operation of the lever which lifts the discharge valve.

` Another object of the invention is to drain the float valve so as to insure its buoyancy.

Another object of the invention is to provide an air chamber near the check valve'on the inlet so that any fluctuation of the water pressure will not allow the check valve to hammer.

Another object of the invention is to pro vide the regulating valve with means whereby it will be possible to vary its discharge to accommodate it to different water pressures.

Another object of the invention is to provide means whereby the water in the tank cannot be partly drained out of the tank when other fixtures in the house are used.

An embodiment of the invention is shown in the drawing in which the same reference numeral is applied to Athe Same portion throughout, but VI am awarethat there are many modifications thereof.

Figure 1 is a perspective view ofY thecomplete apparatus,

Specification of Letters Patent.

Patented June es, 1921.

Fig. 2 is a vertical sectional view through the regulating valve,

Fig. 3 is a vertical sectional view through the tank and wall,

Figs. .4 and 5 are plan views of two different sized outlet regulating disks,

Fig. 6 is a sectional view through a valve of slightly modified form from that shown in the previous iigures,

Fig. 7 is a vertical sectional viewshowing a slightly modified form of tank, and

Fig. 8 is a sectional view showing the valve for preventing the water from passing into the float valve.

The numeral l represents a closed tank having the small supply pipe 2 connected with the bottom thereof, over which is the check valve 3, said valve being pivoted von lugs 4 secured to the inside of the bottom of the tank. The tank is made of any suitably heavy material to withstand the pressure of water to be applied thereto and other than the check valve 3 has no movable parts. Connected with `the bottom of the tank is the outlet pipe 5 extending into an elbow 6 into which the nipple 7 extends, the other end of said nipple being connected with the inlet pipe 8 ofthe regulating valve 9.

The regulating valve 9 has an enlarged chamber covered by the dome shaped cap 10 screwed thereinto and it is provided with a seat atthe bottom for the discharge disk 11 and gasket 12. The outlet pipe 13 has a progection 14 thereon which has an opening therein. for the operating shaft 15, which shafty has the handle 16 on one end and the operating lever,` 17 extending into the pipe 13.

The operating lever carries a rod 18 which is pivoted to the lever 17 and an enlargement 19 enables the operating lever to lift the ball iioatvalve 20 by striking the bottom of the tube 21, said tube acting as a guide for the ball valve and also affording the means whereby the ball valve is lifted. The tube has a drain opening 22 into the inside of the ball valve and the tube is long enough so thatl as the water rushes by the end of the tube that it will not back up into theiloat valve and assoon as the valve is again seatedv whatever water may by `any accident collect in the ball Valve Will et 0116 drailnout.

The discharge pipe 13 is connected by means of the coupling 23 with a` pipe 24 leading tol 4the place or" discharge. Diierent sized outlet disks 25 or 26 may be used as required. Y

rlhe inlet pipe 8 has a depending lip 27 in which is an opening 28, the object being to prevent the waterrushing into the regulating valve from disturbing the float valve and also to allow the water to rise high enough in the regulating valve air chamber to insure against the accidental seating of the valve after it has once opened. The air for the operation of the valve is trapped in the cap 10 and'alsoprevents the water from hammering should the valve prematurely close.

Y The operation of the apparatusis as follows: Viater under pressure passes Jfrom the water discharged.

pipe 2 into the tank, whereupon with the ball valve seated, the tank 1 will fill until the air pressure therein is equal to the water pressure. Upon the unseating of the ball valve the 4air under pressure in the tank will rapidly force all of the water in the tank out through the discharge pipe 24, the rate of escape being determined by the initial pressure and also by the size of the outlet disk. As the water fills the regulating valve up to its air chamber the ball oat will rise until the outlet opening is. tree and as long as any quantityof water may remain in the regulating valve the float will not close, but as soon as the flow of water is reduced to that coming in through the pipe 2, the tendency of the water will be to draw the float down against its seat and as soon as it is seated the pressure will hold it closed until again unseated by the operation of the handle 16. y

' An advantage of the construction herein outlined lifes in the fact that it is not necessary to have a tank as large as the' amount of water required for a single ushing, because during the time the wateri is running out of the tank the water is continually running in from the supply pipe andV consequently from one-sixth to a -quarter or more escapes out or the regulating valve than the tank actually contains.

V It isto be observed that Whatever size outlet washer is used for the valve that the opening therein must be so proportioned to the supply pipe opening of the tank and the pressure, that the desired charge of water will be blown out of the tank faster than the `supply pipe can replenish the In Figs. 6 and 7 the numeral 31 indicates the concealed tank with which the supply pipe 32 is connected, which pipe carries an airV chamber 30 and check valve 33. The outlet pipe 35 has an elbow 36 thereon which ,elbow has a nipple 37 connected with the inlet 38 of the float valve casing 39,

The valve casing 39 has a projection 44 into which a shaft lextends,'said shaft having a handle 46 and lever 47 connected thereto. The lever 47 carries a lifter 49 large enough to substantially close the lolieningin the washer 41, the object being to make certain that the float valve does float to the top of the water in the casing 39 without being reseated by the flow of water should it not be fully lifted. Y 'Ihe iioat has a drain opening 51 and a depending` tube 48 with which the"lifting`lever head 49 contacts.- The lioat seats on Va gasket 42.

rl`he valve casing has' the cover 40 which forms anair chamber and cushion, and the depending iange has an opening therein the same as in the other form of valve shown. The valve is connected to the discharge pipe 54-.by the coupling 53.

The float 50 is prevented from lilling because of a light ball 51 Vwhich is inserted inthe tube 48, 'said tube having grooves 48 which allow the water to pass down, but should the pressure be inwardly, as is the case when the valve is irst unseated, the ball 51 ioats and stops the entrance into the ball 50. In the previous form` of the invention the long tube 21 prevents the water from passing into the ball float.

The object of the air chamber 30 is to prevent the-other fixtures in a house from causing the valve 33 to hammer because of the considerable air body in the tank 31.

From the foregoingV it'will be clear that it is necessarytousethe particular combination o1 different elements shown herein to obtain the results described, but no claim is made to any of said elements separately.

IIaving thus described my invention what I claim as new and desire to secure by LettersPatent of the United States', is as follows, modifications within the scope of the claims being expresslyreserved: v

1. In aV flushing apparatus, the combination of a closed' tank, having an outlet larger than Vits inlet, both inlet and outlet located near the lower end of the tank, a valve casing on the tank outlet, the outlet 'of said valve casing smaller than its inlet, a oat valvecovering theoutlet ol said valve cas'- ing, and means to' lift the float valve into the upper part of the valve casing to allow the'wate'r tobe blown out of the tank.

' 2.I Ina flushing apparatus,the combination of a closed tank having an outlet larger than its inlet, a valve casing on the tank outlet, thejoutlet ofsaid valve casing smaller than its inlet, a float valve covering the out` let of said valve-casing, and means to lift the lioat valve off its seat that it may rise to the upper part of thecasing during the dis* charge of water in thetank.l

3. In a flushing apparatus, the combination of a closed tank having an outlet larger than its inlet, a valve casing separate from the tank on the tank outlet, the outlet of said valve casing smaller than its inlet, a oat valve normally seated over the outlet of said casing, means to lift the oat valve into the upper part of the casing, and means to change the difference in area between the inlet and outlet.

4. In a flushing apparatus, the combination of a closed tank having an outlet larger than its inlet, a valve casing adjacent to the tank on the tank outlet, the outlet of said valve casing smaller than its inlet, a oat valve normally seated over the outlet of said casing, means to lift the valve into the upper part of said casing, to allow the water to be blown out of the tank, and a check valve on the tank inlet.

5. In a iushing apparatus, the combination of a closed tank having an outlet larger than its inlet, a valve casing adjacent to the tank on the tank outlet, a float valve normally seated over the outlet of said casing, means to lift the float valve into the upper part of said casing, a `depending flange or wall within the valve casing to deflect the flow of the water, and to create an area of undisturbed water in the upper part of the casing during the discharge of the tank, the said depending flange or wall to have an opening at the top to connect the top of the casing with the outlet of the tank, to prevent the upper part of the casing becoming air bound which would reduce the floating area of the float valve.

6. In a flushing apparatus, the combination of a closed tank having an outlet larger than its inlet, a valve casing adjacent to the tank on the tank outlet, the outlet of said valve casing smaller than its inlet, a ioat valve normally seated over the outlet of said casing, means to raise the float valve into the upper part oi the casing and an air chamber on the tank inlet to prevent the check valve from hammering with every change in the water pressure.

In testimony whereof I have hereunto set my hand this 19th day of December, A. D. 1914, in the presence of the two subscribed witnesses.

ARTHUR I-I. KLAI-IN. IVitnesses C. I). GRIFFIN, L. H. ANDERSON. 

